I was horrified for I had heard nothing of his illness. I need not say that I rushed for my coat and my hat. As we drove back I asked for the details.

“There is little I can tell you, sir. He has been working at a case down at Rotherhithe, in an alley near the river, and he has brought this illness back with him. He took to his bed on Wednesday afternoon and has never moved since. For these three days neither food nor drink has passed his lips.”

“Good God! Why did you not call in a doctor?”

“He wouldn’t have it, sir. You know how masterful he is. I didn’t dare to disobey him. But he’s not long for this world, as you’ll see for yourself the moment that you set eyes on him.”